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How fast will it run? #2072592 05/13/16 01:58 PM 05/13/16 01:58 PM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	Here's my 360 set up Stock bore and Piston 360 1980 truck motor Comp 275DEH Stock heads, intake, and everything 4160 Holley converted to 4150 vac secondary Manual shifted 727 2400 stall converter 3.23 sure grip 29x10.5 rear slicks 3200 lbs short box pick up What would be the cheapest most effective upgrade? I know the gears are holding me back pretty bad and I'm looking for some used at the moment

Re: How fast will it run? [Re: mechanic190] #2072593 05/13/16 01:59 PM 05/13/16 01:59 PM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	Here is the pick up

Re: How fast will it run? [Re: mechanic190] #2072627 05/13/16 02:52 PM 05/13/16 02:52 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Your really nothing more than stock... best upgrade would be to spray it... cheapest thing in the long run

Re: How fast will it run? [Re: mechanic190] #2072681 05/13/16 04:07 PM 05/13/16 04:07 PM
Joined: Jan 2005 Posts: 3,635 Oakland, MI D dizuster master
dizuster master D Joined: Jan 2005 Posts: 3,635 Oakland, MI	Gear and an intake is where I would start. After that I'd try a simple home port and valve job.

Re: How fast will it run? [Re: mechanic190] #2072728 05/13/16 04:59 PM 05/13/16 04:59 PM
Joined: Jan 2003 Posts: 5,762 Hot Rod Ridge FastmOp master
FastmOp master Joined: Jan 2003 Posts: 5,762 Hot Rod Ridge	Headers and intake, port and polish.

Re: How fast will it run? [Re: mechanic190] #2072755 05/13/16 05:24 PM 05/13/16 05:24 PM
Joined: Jan 2003 Posts: 14,504 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,504 So. Burlington, Vt.	Hopefully you upgraded the valve springs to go along with that cam. With a completely untested combo, the first outing could go a few different ways. And a lot of the performance potential of any given combination often comes down the skill level of the one wrenching on it. Based on that, I think it should run somewhere between 14.50 and 15.50. 68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads

Re: How fast will it run? [Re: mechanic190] #2072767 05/13/16 05:44 PM 05/13/16 05:44 PM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	I have open headers on it. Yes my valve springs match the camshaft. My list of upgrades as the money comes in are 1. Gears 2. Intake 3. Heads or head work maybe next year will disassemble and look at some domed forged Pistons Track is an 1/8 mile and gonna run the street et class this year

Re: How fast will it run? [Re: mechanic190] #2072854 05/13/16 08:08 PM 05/13/16 08:08 PM
Joined: Feb 2003 Posts: 1,942 Metro Detroit OUTLAWD top fuel
OUTLAWD top fuel Joined: Feb 2003 Posts: 1,942 Metro Detroit	I had a similar combo in my Dart ages ago. 3.23's but with a 26" tire. Ran 15.4 with cast manifolds, RV cam, 4bbl iron intake and a 600 holley. Ran 14.0 with headers, LD340, and summit .441 cam Later ran high 12's with home ported heads, XE268, and higher compression. Ran 12.16 @ 116 with a .047 pill in a plate I would hold off on gears if you actually plan to drive it, and suggest the following, not necessarily in order: intake head work N2O/Ebay turbo As for now...9.80 in the 1/8 Faster, Faster until the thrill of speed overcomes the fear of death... 71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater

Re: How fast will it run? [Re: mechanic190] #2072881 05/13/16 08:56 PM 05/13/16 08:56 PM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	No plans on driving it on the street. It's gutted out with a race seat and homemade dash and a fuel cell

Re: How fast will it run? [Re: mechanic190] #2072929 05/13/16 10:14 PM 05/13/16 10:14 PM
Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina sgcuda master
sgcuda master Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina	Remove front sway bar. Relocate battery. What size carb do you have. More than likely, a 1" 4 hole spacer will help throttle response. Good second hand 3,000 stall converter. Gears, if strictly race, and 1/8 mile. [image][/image]

Re: How fast will it run? [Re: mechanic190] #2073069 05/14/16 02:19 AM 05/14/16 02:19 AM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	No front sway bar 600 vac secondary Holley battery is relocated no inner fenders 1/2 inch carb spacer converter was a 3500 stall but that was used and doesn't stall behind my combo as much as it did behind the other guys. And gears are waiting for more money to rebuild

Re: How fast will it run? [Re: mechanic190] #2073071 05/14/16 02:20 AM 05/14/16 02:20 AM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	Unless somebody has a ready to go set with a sure grip for a great deal

Re: How fast will it run? [Re: mechanic190] #2073107 05/14/16 08:43 AM 05/14/16 08:43 AM
Joined: Jan 2003 Posts: 10,010 Frostbitefalls MN (Rocky&Bullw... gregsdart I Live Here
gregsdart I Live Here Joined: Jan 2003 Posts: 10,010 Frostbitefalls MN (Rocky&Bullw...	What converter is it you have? An increase in stall from a well built converter will help. Find out if it is lower stall than a stock type 340 converter, and if it is, that might be a cheap upgrade. Last edited by gregsdart; 05/14/16 08:44 AM. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: How fast will it run? [Re: mechanic190] #2073164 05/14/16 11:45 AM 05/14/16 11:45 AM
Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina sgcuda master
sgcuda master Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina	Carb is good size but should be swapped for a double pumper. 3 keyway timing kit, install cam on advance setting. Disconnect vacuum advance, install lightweight spring kit and set full timing 32-36. Bolt a 12-18" tailpipe on the back of the headers. Last edited by sgcuda; 05/14/16 11:55 AM. [image][/image]

Re: How fast will it run? [Re: mechanic190] #2073295 05/14/16 03:16 PM 05/14/16 03:16 PM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	Not sure on the brand but it's an aftermarket smaller neutral balance (running with a weighted b&m flex plate, before somebody says something about it) I do need to time the cam right now it is in there as it came with a double roller timing chain. Timing is set at 21 initial and 37 total I believe. With vac advance hooked up. Honestly I built this engine back in early 2015 and just broke it in 4 months ago. All of my part choices were what I had in the garage at the time. My biggest complaint on hoe it runs now even after accelerator pump tuning is it is sluggish off the line but 3500 she takes off decent till about 5500

Re: How fast will it run? [Re: gregsdart] #2073853 05/15/16 02:29 PM 05/15/16 02:29 PM
Joined: Feb 2003 Posts: 1,942 Metro Detroit OUTLAWD top fuel
OUTLAWD top fuel Joined: Feb 2003 Posts: 1,942 Metro Detroit	Originally Posted By gregsdart What converter is it you have? An increase in stall from a well built converter will help. Find out if it is lower stall than a stock type 340 converter, and if it is, that might be a cheap upgrade. This. I ran a factory "high stall" 340 converter with the external balanced weight...stalled to ~2400 behind by mild 360. Swapped to a used 10" ATI and saw virtually no gains... Faster, Faster until the thrill of speed overcomes the fear of death... 71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater

Re: How fast will it run? [Re: mechanic190] #2073877 05/15/16 03:33 PM 05/15/16 03:33 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Originally Posted By mechanic190 Not sure on the brand but it's an aftermarket smaller neutral balance (running with a weighted b&m flex plate, before somebody says something about it) I do need to time the cam right now it is in there as it came with a double roller timing chain. Timing is set at 21 initial and 37 total I believe. With vac advance hooked up. Honestly I built this engine back in early 2015 and just broke it in 4 months ago. All of my part choices were what I had in the garage at the time. My biggest complaint on hoe it runs now even after accelerator pump tuning is it is sluggish off the line but 3500 she takes off decent till about 5500 You might want to advance that cam 4* or more to help with low end torque especially with the gear and the conv in it now

Re: How fast will it run? [Re: mechanic190] #2074251 05/15/16 11:58 PM 05/15/16 11:58 PM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	Thank you Mr P. I may look into it after the first race. Never timed a cam in anything other than a diesel before so it will be a learning experience. But she has been a learning experience since day one lol

Re: How fast will it run? [Re: mechanic190] #2078594 05/23/16 01:16 AM 05/23/16 01:16 AM
Joined: Apr 2012 Posts: 119 Wyoming M mechanic190 OP member
mechanic190 OP member M Joined: Apr 2012 Posts: 119 Wyoming	Well gears are a very big hold back right now and not much more than a stock car at the moment. She ran a very consistent 9.8 all weekend

Re: How fast will it run? [Re: mechanic190] #2078873 05/23/16 03:20 PM 05/23/16 03:20 PM
Joined: Aug 2003 Posts: 43,207 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,207 Bend,OR USA	I've swap gears in a Duster with a similar 360 pump gas motor, went from 3.55 to 4.89 and the stupid car didn't change much in ET in the 1/4 mile It felt a bunch faster but the ET slip didn't show it Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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